Compilare: main.cpp: In function 'void insertHash(int)': main.cpp:21:22: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 21 | if (it.first == k) { | ~~~~~~~~~^~~~ main.cpp: In function 'void eraseHash(int)': main.cpp:37:35: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 37 | if (hashMap[key][i].first == k && hashMap[key][i].second == 1) { main.cpp:42:40: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 42 | else if (hashMap[key][i].first == k && hashMap[key][i].second > 1) { main.cpp: In function 'bool searchHash(int)': main.cpp:55:22: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 55 | if (it.first == k && it.second == 1) { | ~~~~~~~~~^~~~